Getting ready for the micro-arcsecond era

TL;DR

This paper discusses the transition from milliarcsecond to microarcsecond astrometry, highlighting current programs, future directions, and conditions needed for maximizing scientific returns in high-precision astrometric measurements.

Contribution

It provides an overview of present astrometric efforts and identifies key future directions and requirements for advancing microarcsecond astrometry.

Findings

Current astrometric programs are summarized.

Future directions include developing new catalogues and tools.

Conditions for success include auxiliary data and education.

Abstract

As the title of this symposium implies, one of the aims is to examine the future of astrometry as we move from an era in which thanks to the Hipparcos Catalogue everyone has become familiar with milliarcsecond astrometry to an era in which microarcsecond astrometry will become the norm. I will take this look into the future by first providing an overview of present astrometric programmes and how they fit together and then I will attempt to identify the most promising future directions. In addition I discuss the important conditions for the maximization of the scientific return of future large and highly accurate astrometric catalogues; catalogue access and analysis tools, the availability of sufficient auxiliary data and theoretical knowledge, and the education of the future generation of astrometrists.